NCERT Solutions for Class 7 Science Chapter 17
Important NCERT Questions
7th Chapter 17 Forests: Our Lifeline
NCERT Books for Session 2022-2023
CBSE Board and State Board
Questions No: 1
Explain how animals dwelling in the forest help it grow and regenerate.
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Various types of animals (herbivores, carnivores, omnivores) live in forests and contribute to food chain. Following activities show how animals help forest grow and regenerate.
• Animals help in dispersal of seeds from one part of the forest to other part.
• Animal’s excreta and their dead bodies when decomposed into soil act as manure for the plants.
• Microorganisms convert dead plants and leaves into humus which is rich in nutrients. Humus in soil provide necessary minerals for plant growth.
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Animals in forests aid growth and regeneration in various ways. They disperse seeds by eating fruits and depositing seeds in different areas through waste, promoting new plant growth. Creatures like insects and decomposers break down dead matter, enriching the soil with nutrients vital for plant growth. Animals also contribute to pollination, crucial for plants’ reproduction. Through their activities, animals create habitats that support new plant growth and provide shelter for others. These roles ensure biodiversity, nutrient recycling, and ecosystem balance, fostering forest growth and regeneration.